I only stumbled on this price by accident. Spent some time today finally hooking up my Ooma service (from a Woot deal I found in SD a month back) and thought...well....I can save money if I buy my own modem. Had known about the older model SB6120....was researching that one...which led me to this one....and a google search found this price. So I bit. Not in a rush, as I need to wait 3-4 weeks to get my number ported......then will work on replacing the modem as well to save more $$$

im using this modem right now actually. got it from best buy for 99.99, so im not sure this is really a great price. this model is just an updated version of the 6120, no different firmware from what i know, etc. so yes its a good modem.

It's the exact same thing as the 6120. Both the 6120 and 6121 are DOCSIS 3.0.

If you have an SB5101 or any other DOCSIS 2.0 modem, you may or may not need to upgrade. DOCSIS 3.0 is only required if you get about a 30 Mbps plan or higher. In fact, most ISP's (Comcast) require you to have a DOCSIS 3.0 modem if you have anything above their 20 Mbps plan.

If you don't know what your speed is, go to speedtest.net and check your speed (wired only, some wireless cards are painfully slow). If you get anywhere near 20 Mbps or above, look into your internet plan and ask your ISP if a DOCSIS 3.0 modem is for you.

This Thread is more than 1340 days old. It is very likely that it does not need any further discussion and thus bumping it serves no purpose.If you still feel it is necessary to make a new reply you may do so.
I am aware that this Thread is rather old but I still want to make a reply.

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